diff --git a/src/Function2D.cpp b/src/Function2D.cpp
index e3b8076..f32fcf4 100644
--- a/src/Function2D.cpp
+++ b/src/Function2D.cpp
@@ -580,6 +580,7 @@ Matrix Aurora::median(const Matrix &aMatrix) {
 
 Matrix Aurora::fft(const Matrix &aMatrix) {
     double *output = nullptr;
+    mkl_free_buffers();
     output = malloc(aMatrix.getDataSize(), true);
     if (!aMatrix.isComplex()) {
         cblas_dcopy(aMatrix.getDataSize(), aMatrix.getData(), 1, output, 2);
@@ -624,7 +625,7 @@ Matrix Aurora::fft(const Matrix &aMatrix) {
     //释放资源
     status = DftiFreeDescriptor(&my_desc_handle);
     if (status != DFTI_NO_ERROR) goto error;
-
+    mkl_free_buffers();
     return Matrix::New(output, aMatrix.getDimSize(0), aMatrix.getDimSize(1), aMatrix.getDimSize(2), Complex);
     error:
         std::cerr<<"FFT fail, error message:"<<DftiErrorMessage(status)<<std::endl;
@@ -637,6 +638,7 @@ Matrix Aurora::ifft(const Matrix &aMatrix) {
         return Matrix();
     }
     DFTI_DESCRIPTOR_HANDLE my_desc_handle = NULL;
+    mkl_free_buffers();
     auto output = malloc(aMatrix.getDataSize(),true);
     MKL_LONG status;
 
@@ -676,6 +678,7 @@ Matrix Aurora::ifft(const Matrix &aMatrix) {
     if (status != DFTI_NO_ERROR) goto error;
     //释放资源
     status = DftiFreeDescriptor(&my_desc_handle);
+    mkl_free_buffers();
     if (status != DFTI_NO_ERROR) goto error;
     {
         return Matrix::New(output, aMatrix.getDimSize(0), aMatrix.getDimSize(1), aMatrix.getDimSize(2), Complex);